METHOD OF MAKING UPDOPED CLADDING BY USING SILICON TERTRACHLORIDE AS THE DOPANT
    123.
    发明申请
    METHOD OF MAKING UPDOPED CLADDING BY USING SILICON TERTRACHLORIDE AS THE DOPANT 审中-公开
    使用三氯化硅作为掺杂剂制备更新的包覆方法

    公开(公告)号:WO2015034991A3

    公开(公告)日:2015-04-30

    申请号:PCT/US2014054001

    申请日:2014-09-04

    Applicant: CORNING INC

    Abstract: One embodiment of the disclosure relates to a method of making an optical fiber comprising the steps of: (i) exposing a silica based preform with at least one porous glass region having soot density of r to a gas mixture comprising SiCl4 having SiCl4 mole fraction ySiCl4 (preferably of less than 0.03) at a doping temperature Tdop such that parameter X is larger than 0.03 to form the chlorine treated preform, wherein X is defined as a function of density r, doping temperature Tdop, SiCl4 mole fraction ySiCl4, and the density ps of the fully densified soot layer; and (ii) exposing the chlorine treated preform to temperatures above 1400 °C to completely sinter the preform to produce sintered optical fiber preform with a chlorine doped region; and (iii) drawing an optical fiber from the sintered optical preform.

    Abstract translation: 本公开的一个实施方案涉及制造光纤的方法,其包括以下步骤:(i)将具有至少一个具有烟灰密度为r的多孔玻璃区域的二氧化硅基预成型件暴露于包含SiCl4的气体混合物,所述SiCl4具有SiCl4摩尔分数ySiCl4 (优选小于0.03),使得参数X大于0.03以形成经氯处理的预成型物,其中X被定义为密度r,掺杂温度T dop,SiCl 4摩尔分数y SiCl 4和密度 ps的完全致密的烟灰层; 和(ii)将氯处理的预成型件暴露于1400℃以上的温度以完全烧结预成型件以生产具有氯掺杂区域的烧结光纤预成型件; 和(iii)从烧结光学预制棒拉制光纤。

    OPTICAL FIBER ROD, OPTICAL FIBER, IMAGE FIBER, AND METHOD FOR MANUFACTURING OPTICAL FIBER ROD

    公开(公告)号:EP3239748A4

    公开(公告)日:2018-07-04

    申请号:EP15872247

    申请日:2015-12-22

    Applicant: KURARAY CO

    Inventor: IWAKAWA RYUICHI

    Abstract: An optical fiber rod (30) according to the present invention includes a center region (35), an outer region (31) formed around the center region (35), and an intermediate region (33) formed between the center region (35) and the outer region (31), and satisfies nA>nB>nC where nA is the refractive index of a material A produced by polymerization of a monomer ma, nB is the refractive index of a material B produced by polymerization of a monomer mb, and nC is the refractive index of a material C produced by polymerization of a monomer mc. The center region (35) is made of a material produced by polymerization of a monomer mixture containing the monomer ma, the outer region (31) is made of a material produced by polymerization of a monomer mixture containing the monomer mc, and the intermediate region (33) is made of a material produced by polymerization of a monomer mixture containing the monomer mb. The refractive index decreases in the order: the center region (35) > the intermediate region (33) > the outer region (31).

    OPTICAL FIBER WITH LOW LOSS AND NANOSCALE STRUCTURALLY HOMOGENEOUS CORE
    129.
    发明公开
    OPTICAL FIBER WITH LOW LOSS AND NANOSCALE STRUCTURALLY HOMOGENEOUS CORE 审中-公开
    GLASFASER MIT GERINGEM VERLUST UND NANOSKALIGER STRUKTURELL HOMOGENER KERN

    公开(公告)号:EP3121155A1

    公开(公告)日:2017-01-25

    申请号:EP16180670.8

    申请日:2016-07-22

    Abstract: An optical fiber has a core region that is doped with one or more viscosity-reducing dopants in respective amounts that are configured, such that, in a Raman spectrum with a frequency shift of approximately 600 cm -1 , the fiber has a nanoscale structure having an integrated D2 line defect intensity of less than 0.025. Alternatively, the core region is doped with one or more viscosity-reducing dopants in respective amounts that are configured such that the fiber has a residual axial compressive stress with a stress magnitude of more than 20 MPa and a stress radial extent between 2 and 7 times the core radius.
    According to another aspect of the invention a majority of the optical propagation through the fiber is supported by an identified group of fiber regions comprising the core region and one or more adjacent cladding regions. The fiber regions are doped with one or more viscosity-reducing dopants in respective amounts and radial positions that are configured to achieve viscosity matching among the fiber regions in the identified group.

    Abstract translation: 光纤具有掺杂有一种或多种减少粘度的掺杂剂的核心区域,其各自的配置量使得在具有约600cm -1频移的拉曼光谱中,纤维具有纳米尺度结构,其具有 集成的D2线缺陷强度小于0.025。 或者,核心区域掺杂有一种或多种各种量的降低粘度的掺杂剂,其被配置成使得纤维具有应力幅值大于20MPa的残余轴向压缩应力和2至7倍的应力径向范围 核心半径。 根据本发明的另一方面,通过光纤的大部分光学传播由包括芯区域和一个或多个相邻包层区域的所识别的一组光纤区域支撑。 纤维区域掺杂有相应量和径向位置中的一种或多种降低粘度的掺杂剂,其被配置为实现所识别的组中的纤维区域之间的粘度匹配。

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